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Error :Request header field Content-Type is not allowed by Access-Control-Allow-Headers

... As hinted at by this post Error in chrome: Content-Type is not allowed by Access-Control-Allow-Headers just add the additional header to your web.config like so... <httpProtocol> <customHeaders> <add name="Access-Control-Allow-Origin" value="*...
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Checking for empty arrays: count vs empty

This question on ' How to tell if a m>PHPm> array is empty ' had me thinking of this question 12 Answers ...
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What is the “->” m>PHPm> operator called and how do you say it when reading code out loud? [closed]

What do you call this arrow looking -> operator found in m>PHPm>? 16 Answers 16 ...
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Sibling package imports

...el package Steps Make a setup.py file to the root level directory The contents for the setup.py would be* from setuptools import setup, find_packages setup(name='myproject', version='1.0', packages=find_packages()) Use a virtual environment If you are familiar with virtual environments, ac...
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Add border-bottom to table row

... You are wrong, @Renan . The collapsing border model is m>exm>actly what makes row borders stylable. According to CSS sectoin 17.6: In the separate border model “Rows, [...] cannot have borders (i.e., user agents must ignore the border properties for those elements).” “In the co...
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Convert a m>PHPm> object to an associative array

... (what you asked for) it's fine. Also see this in-depth blog post: Fast m>PHPm> Object to Array conversion share | improve this answer | follow | ...
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How do I get a reference to the app delegate in Swift?

...bles added by your subclass of UIApplication, like your managed object contm>exm>t. To resolve this, simply downcast to "AppDelegate" or what ever your UIApplication subclass happens to be called. In Swift 3, 4 & 5, this is done as follows: let appDelegate = UIApplication.shared.delegate as! AppDel...
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What is the use of the @ symbol in m>PHPm>?

... It suppresses error messages — see Error Control Operators in the m>PHPm> manual. share | improve this answer | follow | ...
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mysqli_fetch_assoc() m>exm>pects parameter / Call to a member function bind_param() errors. How to get t

...s the reason. Unfortunately, by default such errors are not transferred to m>PHPm>, and all you've got is a cryptic error message mentioned above. Hence it is very important to configure m>PHPm> and MySQLi to report MySQL errors to you. And once you get the error message, fixing it will be a piece of cake....
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Check whether an array is empty [duplicate]

... You don't need to count the elements or use empty(). A one-liner like m>phpm> -r 'echo array() ? "T":"F";' will show the truthiness for an empty or non-empty array. – jerseyboy May 16 '14 at 13:08 ...